diff options
Diffstat (limited to 'deps/npm/node_modules/move-concurrently/move.js')
-rw-r--r-- | deps/npm/node_modules/move-concurrently/move.js | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/deps/npm/node_modules/move-concurrently/move.js b/deps/npm/node_modules/move-concurrently/move.js new file mode 100644 index 0000000000..6a2a7332c8 --- /dev/null +++ b/deps/npm/node_modules/move-concurrently/move.js @@ -0,0 +1,84 @@ +'use strict' +module.exports = move + +var nodeFs = require('fs') +var rimraf = require('rimraf') +var validate = require('aproba') +var copy = require('copy-concurrently') +var RunQueue = require('run-queue') +var extend = Object.assign || require('util')._extend + +function promisify (Promise, fn) { + return function () { + var args = [].slice.call(arguments) + return new Promise(function (resolve, reject) { + return fn.apply(null, args.concat(function (err, value) { + if (err) { + reject(err) + } else { + resolve(value) + } + })) + }) + } +} + +function move (from, to, opts) { + validate('SSO|SS', arguments) + opts = extend({}, opts || {}) + + var Promise = opts.Promise || global.Promise + var fs = opts.fs || nodeFs + var rimrafAsync = promisify(Promise, rimraf) + var renameAsync = promisify(Promise, fs.rename) + + opts.top = from + + var queue = new RunQueue({ + maxConcurrency: opts.maxConcurrency, + Promise: Promise + }) + opts.queue = queue + opts.recurseWith = rename + + queue.add(0, rename, [from, to, opts]) + + return queue.run().then(function () { + return remove(from) + }, function (err) { + // if the target already exists don't clobber it + if (err.code === 'EEXIST' || err.code === 'EPERM') { + return passThroughError() + } else { + return remove(to).then(passThroughError, passThroughError) + } + function passThroughError () { + return Promise.reject(err) + } + }) + + function remove (target) { + var opts = { + unlink: fs.unlink, + chmod: fs.chmod, + stat: fs.stat, + lstat: fs.lstat, + rmdir: fs.rmdir, + readdir: fs.readdir, + glob: false + } + return rimrafAsync(target, opts) + } + + function rename (from, to, opts, done) { + return renameAsync(from, to).catch(function (err) { + if (err.code !== 'EXDEV') { + return Promise.reject(err) + } else { + return remove(to).then(function () { + return copy.item(from, to, opts) + }) + } + }) + } +} |